Hyundai Sonata: Engine coolant - MaintenanceHyundai Sonata: Engine coolant

The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once a year, at the beginning of the winter season, and before traveling to a colder climate.

Changing the engine oil and filter
Have engine oil and filter changed by an authorized HYUNDAI dealer according to the Maintenance Schedule at the beginning of this section. CALIFORNIA PROPOSITION 65 WARNING Engine oil contains ...

Checking the coolant level
WARNING Removing radiator cap Never attempt to remove the radiator cap while the engine is operating or hot. Doing so might lead to cooling system and engine damage and could result in se ...

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Description and Operation
Description The ECM (Electro Chromatic inside rear view Mirror) is for dimming the reflecting light from a vehicle behind at night, Preventing glare from the light. The forward facing sensor ...

Before starting
Close and lock all doors. Position the seat so that all controls are easily reached. Adjust the inside and outside rearview mirrors. Be sure that all lights work. Check all gauges. Check ...

ESC operation
ESC ON condition When the ignition is turned ON, ESC and ESC OFF indicator lights illuminate for approximately 3 seconds, then ESC is turned on. Press the ESC OFF button for at least half a ...